H - Electricity – 04 – N
Patent
H - Electricity
04
N
355/13, 375/46
H04N 3/16 (2006.01) H01J 29/70 (2006.01) H01J 31/12 (2006.01) H04N 3/26 (2006.01)
Patent
CA 1242530
22 ABSTRACT Deflection Circuit for a Cathode Ray Display Tube A deflection circuit having particular application to a flat cathode ray display tube in which a channel plate electron multiplier is disposed parallel to, and spaced from, a cathodoluminescent screen and a low current, low voltage electron beam is scanned over the input side of the electron multiplier by means of a variable electrostatic field created between a planar array of substantially parallel elongate electrodes and the input side of the electron multiplier. In order to generate the variable electrostatic field a deflection circuit is provided having a plurality of ramp voltage generating stages, each stage being connected to a respective elongate electrode. The deflection circuit is operated in such a manner that the completion of the generation of a ramp voltage in one stage is used to trigger the next required stage.
490936
N.v.philips'gloeilampenfabrieken
Van Steinburg C.e.
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